Oscillating-chair guide.



A. L. WARNER.

OSCILLATING CHAIR GUIDE.

APPLlCATlON mm DEC. 15. 19x5.

Patented Jan. 2, 1917.

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ALBION L. WARNER, OF NEW YORK, N. Y., ASSIGNOR T0 CHARLES LYON RUSSELL, OF

NEW YORK, N. Y.

osoILLATINe-oHAin GUIDE.

Specification of Letters Patent.

Patented Jan. 2, 1917.

Application filed December 15, 1915. Serial No. 67,037.

To all whom it may concern:

Be it known that I, ALBION L. \VARNER, a citizen of the United States of America, residing in the borough of Bronx, county of Bronx, and State of New York, have invented certain new and useful Improvements in Oscillating-Chair Guides, of which the following is a specification.

This invention relates to means for guiding or steadying oscillating chairs in their oscillatory movements, and for preventing movements transversely of the direction of the path of oscillation. The guide in. one form also acts to limit the amplitude of the relative movements of the parts of the chair.

In the drawings accompanying this specification my invention is illustrated in connection with a conventional form of oscillating chair, in which drawings- Figure 1 is a side elevation of an oscillating chair, shown partly in section, and illustrating a practicable embodiment of the invention; Fig. 2 is a vertical cross-section of the chair shown in Fig. 1, taken on a plane at about the line 2-2 of Fig. 1, looking from the front toward the back; Fig. 3 is a detail taken on a plane at about the line 83 of Fig. 1, looking from the back toward the front, and Fig. 1 is a modification presently to be described.

This invention particularly relates to that type of suspended chair known as an oscillating chair, wherein the main chair body, indicated in thedrawings by the reference character 7, is mounted for movement upon a stationary base 8. In the form of the chair illustrated the arms 10 have inner and outer depending curtains, as it were, 11 and 12. The curtain 11 extends from the arm 10 to the seat supporting frame 13, and the curtain 12 extends toward the base, leaving sufficient clearance for the ordinary swing- Front and rear closures 111, 112 form with arms 10 and curtains 11, 12 housings for ing or rocking movement of the chairbody.

which I am now commercially manufacturing. Each support 11 has pivoted to it two depending links 15, one being pivoted at the front and the other at the rear. The pivots are indicated at 16. These links 15 are also pivoted to the lower portion of the chair, in the illustration at 17 to the curtain 12. The movements of the chair are dependentupon the relative proportions of the parts and location of the axes defined by the pivots. In the illustration the lower front pivot 17 is shown located forwardly of the upper front pivot 16, and the lower rear pivot 17 is shown located rearwardly of the upper rear pivot 16 when the chair is in a normal position. This, therefore, spreads the links apart at the bottom and increases the oscillatory movement, giving more of the resultant of a compound movement to the chair, than when the links on each side are parallel.

The oscillating chairs were formerly built without the curtain 12, and they suspending links were located on the inside of the upright 14. Adding the outer curtain not only for improving the general appearance of the chair, but also for protecting persons from injury by the relatively moving parts increased the necessity for preventing movements laterally of the path of oscillation. In the prior referred-t0 form of construction it was desirable to prevent lateral move ments of the chair relative to its support, but with the addition of the outer curtain 12 and the boxing in of the parts the problem of preventing shaking or lateral movements was increased. v

In the illustrative example of my invention two guides are provided, one at the front and one at the rear, which are flexible in the direction of the path'of oscillation and are rigid transversely thereof. The guides are preferably composed of two rigid planes articulated together, and one plane articulated to the chair frame near the front, and the other to the-base inwardly of the front. These planes may be constructed as circumstances and conditions dictate. The guide at the front of the Fig. 1 illustration is shown in Fig. 3. This com prises two boards, 20 and 21, preferably longer than they are wide, that is, longer in the direction parallel with the axes of articulation. Aplurality of hinges 22 articulates the boards together, and a plurality of hinges 23 articulates the free edge of the board or plane to some convenient portion of the chair body, preferably the lower edge of a casing member 24 dependent from the seat frame 13. The free edge of the plane or board 21 is shown articulated by means of a plurality of hinges 25 to a portion of the relatively stationary base 8. It will therefore be seen that upon the chair body swinging or oscillating relatively to the stationary base 8, the planes 20 and 21 of the guide freely move by their articulated connections, but prevent any crosswise swinging or lateral movements. These lateral movements are not only annoying to the occupant of the chair, but also cause the variousworking parts, to be cramped in their action and become injured, and also produce disagreeable noises. By preventing I these undesirable movements it is possible to make the structure of the'supports and arm boxings much more compact.

The guide shown at the rear is formed of planes and31, the construction of which planes is best seen in Fig. 2, wherein instead of being formed of boards, as in the Fig. 3

construction, they are made up of angle iron,

to the frame of the relatively stationary base at 34. The connections withthe base are shown located inwardly of the connections with the chair body. This is for more effectually concealing each guide from view as the chair moves inwardly relatively to such guide.

In some instances it may be found desir--- able to so proportion the parts of the guide and its points of attachment that it limits the movement of the chair body; for instance, the front guide to limit the forward movement of the chair body and the rear guide to limit the rearward movement. If a chair is liableto be subjected to rather hard service, particularly if there is a frequent tendency to force the chair beyond its ordinary or intended limits of movements, as for instance chairs used in nurseries, it may be found desirable to arrange the guide in the manner illustrated in Fig. 4, in which the planes 40 and 41 are articulated together as above described, and plane 40 articulated at 42 to the dependent portion 43 of the chair frame, and at 44 to a rail 45 carried by the standard 140 of the base 80. The points of articulation 42, 44, to the chair body and the base respectively, are shown on substantially the same horizontal plane. If ordinary hinges and screws are used for applying the parts, this form of connection is quite desirable where the chief dutyof the guide is for preventing overthrow.

The drawings herein are intended to represent illustrative examples of my improvement, and itwill be apparent that changes in construction may be made as occasion demands, within the limit of the claims, Without departing from the spirit of my inven: tion. r

- What I claim is 1. The combination witha relatively stationary base, of a chair body, means for suspending the chair body abovethe baseffor oscillation relatively thereto, and means flexible in the direction ofthe path of oscillation and rigid transverselythereto for permitting. freedom ofsuch relative oscillation and preventing movements of the chair laterally of its predetermined path of oscillation. e

2. The combination with a base, of apair of upstanding supports, a chair bodyhaving dependent portions-housing said supports, a pair of links pivoted to each said support and to the chair body whereby the chair body may oscillate relatively -to the said base, a pair of guides for preventing movementof the chair body laterally of its path of oscillation and each comprising a pair of rigid planes articulated together, and one plane articulated to the said base and the other plane articulated to the said chair body. r p I 3. Thecombination with aflrelatively stationary base, a chair body and means for suspending the chair body above the base for oscillation relatively thereto, of a' guide comprising a pair of rigid planes articulated together and respectively articulated to the said base and chair body, the relative proportions of the parts beingsuch that the guide limits the oscillatory movement of the chair body relatively to the base and prevents overthrow thereof.

4. The combination with a relatively stationary base a chair body and means for suspending the chair body above the base whereby the chair body is adapted to oscillate in a path from front to rear, of a guide,

located at the front of said chair body and a guide located at the rearthereof, each of said guides comprising a pair of rigid planes articulated together and respectively articulated to the said base and chair body, the relative locations of the planes being such as to prevent movements of the chair body laterally of its predetermined path of oscillation, and the relative proportions of the parts being such that the guides limit the oscillatory movement of the chair body relatively to the base, one in one direction and the other in the other direction.

5. The combination with a relatively stationary base having a pair oi upstanding supports, of a chair body having arms located above said supports and depending portions housing the same, a pair of links pivoted to each support and to the chair body whereby the same may oscillate relatively to the said support, and a guide between the chair body and base flexible in the direction of the path of oscillation and rigid transversely thereto.

6. The combination with a relatively stationary base having a pair of upstanding supports, of a chair body having arms located above said supports and depending portions housing the same, a pair of links pivoted to each support and to the chair body whereby the same may oscillate relatively to the said support, and a guide comprising a pair of substantially rigid planes articulated together at one edge and respectively articulated at their other edges to the said base and chair body.

In witness whereof, I have hereunto signed my name.

ALBION L. WARNER. fitness:

CHAS. LYON RUssELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

